/Engine/Source/Runtime/TypedElementFramework/Public/Elements/Framework/TypedElementOwnerStore.h
This must be paired with a call to UnregisterElementOwner if a new element owner is created.
TTypedElementOwnerScopedAccess< ElementDataType > FindOrRegisterElementOwner ( const KeyDataType & InKey, [TFunctionRef](API\Runtime\Core\GenericPlatform\TFunctionRef)< [TTypedElementOwner](API\Runtime\TypedElementFramework\Elements\Framework\TTypedElementOwner)< ElementDataType >()> InCreateElement )